FreeBSD/Linux Kernel Cross Reference
sys/netipsec/ipip_var.h

     /*      $FreeBSD: releng/10.0/sys/netipsec/ipip_var.h 253088 2013-07-09 10:08:13Z ae $  */
     /*      $OpenBSD: ip_ipip.h,v 1.5 2002/06/09 16:26:10 itojun Exp $ */
     /*-
      * The authors of this code are John Ioannidis (ji@tla.org),
      * Angelos D. Keromytis (kermit@csd.uch.gr) and
      * Niels Provos (provos@physnet.uni-hamburg.de).
      *
      * The original version of this code was written by John Ioannidis
      * for BSD/OS in Athens, Greece, in November 1995.
     *
     * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996,
     * by Angelos D. Keromytis.
     *
     * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis
     * and Niels Provos.
     *
     * Additional features in 1999 by Angelos D. Keromytis.
     *
     * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis,
     * Angelos D. Keromytis and Niels Provos.
     * Copyright (c) 2001, Angelos D. Keromytis.
     *
     * Permission to use, copy, and modify this software with or without fee
     * is hereby granted, provided that this entire notice is included in
     * all copies of any software which is or includes a copy or
     * modification of this software.
     * You may use this code under the GNU public license if you so wish. Please
     * contribute changes back to the authors under this freer than GPL license
     * so that we may further the use of strong encryption without limitations to
     * all.
     *
     * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
     * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
     * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
     * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
     * PURPOSE.
     */
    
    #ifndef _NETINET_IPIP_H_
    #define _NETINET_IPIP_H_
    
    /*
     * IP-inside-IP processing.
     * Not quite all the functionality of RFC-1853, but the main idea is there.
     */
    
    struct ipipstat {
            uint64_t        ipips_ipackets; /* total input packets */
            uint64_t        ipips_opackets; /* total output packets */
            uint64_t        ipips_hdrops;   /* packet shorter than header shows */
            uint64_t        ipips_qfull;
            uint64_t        ipips_ibytes;
            uint64_t        ipips_obytes;
            uint64_t        ipips_pdrops;   /* packet dropped due to policy */
            uint64_t        ipips_spoof;    /* IP spoofing attempts */
            uint64_t        ipips_family;   /* Protocol family mismatch */
            uint64_t        ipips_unspec;   /* Missing tunnel endpoint address */
    };
    
    #ifdef _KERNEL
    #include <sys/counter.h>
    
    VNET_DECLARE(int, ipip_allow);
    VNET_PCPUSTAT_DECLARE(struct ipipstat, ipipstat);
    
    #define IPIPSTAT_ADD(name, val) \
        VNET_PCPUSTAT_ADD(struct ipipstat, ipipstat, name, (val))
    #define IPIPSTAT_INC(name)      IPIPSTAT_ADD(name, 1)
    #define V_ipip_allow            VNET(ipip_allow)
    #endif /* _KERNEL */
    #endif /* _NETINET_IPIP_H_ */

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